1. Cut doughnuts into 8 pieces. Combine coffee and kahlua in a jug (optional).
2. Using an electric mixer, whip cream into soft peaks. Stir in sugar. Fold through custard until just combined.
3. Arrange one-third of the doughnut pieces over base of an 8-cup capacity serving bowl or dish. Drizzle with a little coffee mixture. Spread one-third of the cream mixture over doughnuts pieces. Top with one-third of the raspberries and one-third of the Maltesers. Repeat layers twice.
4. Cover and refrigerate for 3 hours, or overnight if time permits. Sprinkle with almonds just before serving.